FIELD: medicine.
SUBSTANCE: invention refers to polymer conjugates of formula (I) comprising nucleotide or oligonucleotide residue, which can be applied for treatment of cancer and methods for their obtaining. 
where R1 and R2 independently represent H or polyalkylenoxyde, not necessarily having capping group selected from OH, NH2, SH, CO2N, C1-6 alkyls, compounds of formula (II) X2-(L2)n-(L1)o- and the formula (III) -(L4)p-(L3)m-X3, and when (o+n)≥2 each of n and o is a positive integer, each p and m are equal to zero, and R2 represents H, and when (p+m)≥2 each p and m is a positive integer, each n and o are equal to zero and R1 represents H; X1, X2, X3 are independently selected from a single-stranded or double-stranded oligonucleotide residue; L1 and L4 independently represent released link fragments; L2 and L3 are independently selected from bifunctional spacer groups.
EFFECT: developing of new nucleotide conjugates with antitumor activity.
21 cl, 25 ex, 7 tbl, 12 dwg
